The Amazon is losing frog species faster than scientists can find them. In Brazil, researchers estimate that dozens of amphibian species may vanish before they are ever formally described.
A team of herpetologists has been racing across the western Amazon, documenting frogs in areas where deforestation is accelerating. The window to study these animals is closing rapidly.
A new species every few days, but extinction is faster
Scientists have described more than 50 new frog species from the Amazon in the past five years. That pace is remarkable. But it is not enough.
Field surveys show that many of these frogs live in very small areas. Some are found only in a single patch of forest. When that forest is cut for cattle ranching or soy farming, the entire species can disappear.
Researchers from Brazil's National Institute of Amazonian Research and other institutions have been conducting rapid inventories in remote parts of the Amazon basin. They find frogs, collect specimens, and run genetic tests. Often, they are working against the clock.
Why local people care about tiny frogs
For communities living along the Juruá River and other tributaries, frogs are part of daily life. Some species are used in traditional medicine. Others are indicators of water quality and forest health.
When frog populations crash, it signals broader environmental problems. Local fishers and farmers notice when the nighttime chorus of calls goes quiet. They see changes in insect numbers and in the behavior of predators that eat frogs.
Scientists have been working with local guides and landowners to gain access to private forest fragments. These partnerships have led to the discovery of several new species, including a brightly colored poison dart frog described in 2023 from the Juruá River Basin.
The clock is ticking on unknown biodiversity
The Amazon holds more species of frogs than any other place on Earth. But deforestation rates in the Brazilian Amazon remain high. Fires, road building, and agricultural expansion continue to fragment the forest.
Researchers say that many of the frogs they are finding now may be gone within a decade. Without a formal description, a species has no scientific name. It cannot be listed as endangered. It receives no legal protection.
The race to name these frogs is not just about science. It is about documenting what exists before it is erased.
